MLA

Durand, Maurice M., 1966-. Ca Dao Ngạn Ngữ Phương Ngôn, Nôm. Box 10, folder 86. Circa 1700-circa 1900. https://collections.library.yale.edu/catalog/10732459.

APA, 6th edition

Durand, Maurice M., 1966-. (["Box 10, folder 86"])(Circa 1700-circa 1900)[Ca Dao Ngạn Ngữ Phương Ngôn, Nôm]. https://collections.library.yale.edu/catalog/10732459.